* {
    margin: 0;
    padding: 0;
}

body {
    padding: 30px;
}

a {
    text-decoration: none;
    color: #ccc;
}

h2 {
    color: #f80;
}

.container {
    margin: 35px 0;
    height: 300px;
    background-color: #ccc;
    padding: 20px;
}

.container p {
    line-height: 46px;
}

/* 属性选择器 */
.container input[type="submit"] {
    padding: 5px 15px;
    cursor: pointer;
    margin-top: 10px;
}